This breakout box adapter cable is for the Scania EMS 7 & AMP; S 8 connector system. This adapter cable is placed between the ECU connector and the connector of the motor cable harness. All signals will now have to pass through the Failure Simulation Box. To use the Failure Simulation Box, see the description of this box on this webshop. This cable can be used on the FSB155M and the larger FSB232M. This cable works on both EMS 7 and EMS 8 system.